Accepted name: Dendrochilum sumatranum J.J.Sm., Recueil Trav. Bot. Néerl. 1: 69 (1904)

Subgenus – Platyclinis. Section – Platyclinis.


 
The text is below the photos.
 
This photo was taken by Peter O'Byrne and is reproduced courtesy of Swiss Orchid Foundation at the Herbarium, Jany Renz. http://orchid.unibas.ch
This photo was taken by Peter O'Byrne and is reproduced courtesy of Swiss Orchid Foundation at the Herbarium, Jany Renz. http://orchid.unibas.ch
 

Synonyms

 

None

 

Origin in the Wild

 

Sumatra

 

Elevation in the Wild

 

1600-2200 metres

 

Habitat in the Wild

 

This species has been found on Mount Singgalang, Bandar Baroe and Sibolangit.

 

The Plants Description

 

The pseudobulbs cluster together along a short rhizome and are shaped narrowly conical. The leaves are petiolate. The leaf blades are shaped oblong-lanceolate and have subacute apices. The leaf blades measure c3cm wide.

 

The Inflorescence

 

The inflorescence is synanthous and emerges at the same time as the leaves. The inflorescence is erect and measures 40cm long. The peduncle is longer than the rachis. The flowers are spaced 3mm apart.

 

The Flowers

 

The tepals are shaped ovate and have acuminate apices; the tepals measure c6mm long and 2.5mm wide. The labellum is 3-lobed and measures c4.5mm long; the labellum is shortly clawed. The hypochile is shaped rectangular. The side lobes spread widely at 90 degrees; Jim Comber wrote that they are 'bristle like' (Comber 2001). The mid-lobe is shaped broadly ovate to semi-orbicular. The column is curved and measures 3mm long. The apical hood has a truncate apex with a dentate margin. The stelidia grow from the base of the column and do not reach the column apex.

 

Herbarium Specimens

 

Syntype

 

National Herbarium Netherlands (L)

 

Specimen L0063844 (photo)

Specimen L0063845 (photo)

Specimen L0063846 (photo)

 

 

Other herbarium specimens

 

National Herbarium Netherlands (L)

 

Specimen L0322765

Specimen L0322766

Specimen L0322767

Specimen L0322769

 

Scent

 

I could find no record.

 

Flowering Season

 

Flowering plants have been collected in the wild during June, November and December.

 

Culture

 

I do not think this species is in cultivation

 

Similar Species

 

Dendrochilum longibracteatum (see this page for the differences)

Dendrochilum polluciferum (see this page for the differences)

 

Other Information

 

Jim Comber wrote that Dendrochilum longibracteatum is a larger plant. J.J. Smith wrote that this species and Dendrochilum longibracteatum could be the same.

 

Information about this species was hard to find.

 

Reference -

 

COMBER, J.B. Orchids of Sumatra, 2001, Royal Botanic Gardens Kew

 

World Checklist of Selected Plant Families. 09 January 2009. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 09 January 2009.